Reverse channel augmented multihop lightwave networks

The idea of providing reverse channels with minimal hardware costs in Shuffle-nets to reduce the network diameter improve mean delay, and provide other advantages is discussed. The reverse channel idea can be applied to any multistage network with wrapped around connections. The advantages of reverse channels are demonstrated by providing a simple reverse connection between adjacent stages of the Shuffle-net. It is shown how a time- and wavelength-division-multiplexed media access protocol for the Shuffle-net can be easily adapted for the reverse channel augmented Shuffle-net (RC-Shuffle-net). The performance of the RC-Shuffle-net and its advantages over the Shuffle-net are shown